发明名称 Magnetic recording medium
摘要 A magnetic recording medium for use in reproduction with an MR head, which comprises: a non-magnetic substrate; a non-magnetic layer including a binder resin having dispersed therein a non-magnetic powder on the non-magnetic substrate; and a magnetic layer on the non-magnetic layer, wherein the magnetic layer is obtained by applying a magnetic coating material on the applied, dried and cured non-magnetic layer, the magnetic layer includes a metal magnetic powder with a mean major axis length of from 0.03 to 0.08 mum, and a saturation magnetization sigma<SUB>s </SUB>of from 100 to 130 Am<SUP>2</SUP>/kg, and the center line mean roughness Ra of the magnetic layer surface is 5 nm or less.
申请公布号 US6908659(B2) 申请公布日期 2005.06.21
申请号 US20030682904 申请日期 2003.10.14
申请人 TDK CORPORATION 发明人 SASAKI HIDEKI
分类号 G11B5/70;G11B5/706;(IPC1-7):G11B5/706 主分类号 G11B5/70
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